package com.itheima.reggie.config;

import com.itheima.reggie.common.JacksonObjectMapper;
import com.itheima.reggie.interceptor.LoginCheckInterceptor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.util.ArrayList;
import java.util.List;

//web相关配置
@Configuration
public class ReggieWebMvcConfig  implements WebMvcConfigurer {

    @Autowired
    private LoginCheckInterceptor loginCheckInterceptor;

    /*设置静态资源映射*/
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        /*当访问请求是/backend/**时，去classpath:backend/寻找资源*/
        /*相当于xml配置文件中的释放资源*/
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        //定义放行路径
        ArrayList<String> uris = new ArrayList<>();
        uris.add("/backend/**");
        uris.add("/front/**");
        uris.add("/error");
        uris.add("/employee/login");
        uris.add("/employee/logout");


        registry.addInterceptor(loginCheckInterceptor)  /*添加拦截器*/
                .addPathPatterns("/**")     /*拦截路径,拦截所有*/
                .excludePathPatterns(uris);   /*不拦截路径*/
    }

    //扩展mvc框架的消息转换器
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters){
        //创建消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层使用Jackson将Java转为json   (参数时自定义的转换类)
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        converters.add(0,messageConverter);
    }




}
